we're not going in to the fbi investigation or the inspector general or anything else. this is benghazi. >> on thursday in a briefing which stretched more than three and a half hours, intelligence officials showed lawmakers real time film of the attack for the first time. >> the film is a composite from a number of sources. it is real time. it does begin from when the incident started and it goes through the incident. and the exodus. >> attorney general eric holder is defending the fbi publicly for the first time as some lawmakers say the agency was too slow to inform them and the president of the petraeus investigation. >> we follow the facts. we do not share outside the justice department, outside the fbi the facts of ongoing investigations. we made the determination as we were going through the matter that there was not a threat to national security. >> joining me now nbc's capitol hill correspondent kelly o'donnell and, kelly, a lot of moving parts on capitol hill this morning. what questions are lawmakers interested in putting to petraeus? any new information out o